CN202404181U - Novel intelligent transformer station electric energy quality monitoring terminal - Google Patents
Novel intelligent transformer station electric energy quality monitoring terminal Download PDFInfo
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- CN202404181U CN202404181U CN2012200012698U CN201220001269U CN202404181U CN 202404181 U CN202404181 U CN 202404181U CN 2012200012698 U CN2012200012698 U CN 2012200012698U CN 201220001269 U CN201220001269 U CN 201220001269U CN 202404181 U CN202404181 U CN 202404181U
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Abstract
本实用新型涉及一种新型智能变电站电能质量监测终端，其技术特点是：包括变送模块、数据采集模块、管理模块、数据处理及分析模块和GPS时间基准模块，变送模块的输入端与过程层合并单元相连接，变送模块、数据采集模块、管理模块、数据处理及分析模块依次相连接，GPS时间基准模块连接到内部总线上，数据处理及分析模块通过通信接口与站控层相连接。本实用新型应用于IEC61850标准规定的智能变电站系统结构中的间隔层，实现与过程层合并单元和站控层的无缝互联和通讯功能，充分保证了通信的可靠性和实时性，为智能变电站自动化系统的互动性和互操作性奠定了坚实的基础，节省了调试和维护时间，也降低了运行成本。
The utility model relates to a new type of intelligent substation power quality monitoring terminal, and its technical characteristics are: including a transmission module, a data acquisition module, a management module, a data processing and analysis module and a GPS time reference module, the input terminal and process of the transmission module The layer merging unit is connected, the transmission module, data acquisition module, management module, data processing and analysis module are connected in turn, the GPS time reference module is connected to the internal bus, and the data processing and analysis module is connected to the station control layer through the communication interface . The utility model is applied to the interval layer in the intelligent substation system structure stipulated by the IEC61850 standard, realizes seamless interconnection and communication functions with the process layer merging unit and the station control layer, fully guarantees the reliability and real-time performance of communication, and is an intelligent substation The interaction and interoperability of the automation system lays a solid foundation, saves commissioning and maintenance time, and also reduces operating costs.
Description
Technical field
The utility model belongs to the intelligent grid field, especially a kind of novel intelligent transformer station electric energy quality monitoring terminal.
Background technology
Along with the foundation of intelligent substation, be that the technology of representative obtains widely applying with IEC61850 stipulations and electric mutual inductor.The IEC61850 stipulations are unified the international standard of communication protocol as transformer station, realize the standardization and the interoperability of intelligent substation automated system.According to the IEC61850 standard; The intelligent substation system architecture is made up of process layer, wall, station level three parts; For electronic mutual inductor applying in the intelligent substation automated system, the matter of utmost importance that the smart machine of wall faces be to resolve with the management system interface of process layer merge cells and station level with communicate by letter.Because there are very big-difference in intelligent substation and traditional transformer station; Therefore; Existing electric energy quality monitoring terminal can not satisfy actual needs, and its reason is: 1, the change of interface, because intelligent substation process layer equipment adopts electronic mutual inductor, optical fiber output; Electronic mutual inductor is aggregated into merge cells; Merge cells sends sampled data to the equipment that is positioned at wall through point-to-point or Ethernet mode, and no longer include simulation or forceful electric power signal and send into equipment, but digital signal or very little simulating signal; 2,,, therefore, need original protection philosophy and metering method to adjust based on traditional ferromagnetic type mutual inductor more near the network actual conditions because intelligent grid is more accurate to the semaphore request of gathering; 3, the communicating requirement to station level increases severely, and equipment must promote communication and data-handling capacity.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of prior art, provide a kind of reasonable in design, can implementation procedure layer merge cells and the novel intelligent transformer station electric energy quality monitoring terminal of the seamless interconnected and communication function of station level.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of novel intelligent transformer station electric energy quality monitoring terminal; Comprise transmitting module, data acquisition module, administration module, data processing and analysis module and gps time base modules; The input end of transmitting module is connected with process layer merge cells; Transmitting module, data acquisition module, administration module, data processing and analysis module are connected successively, and the gps time base modules is connected on the internal bus, and data processing and analysis module are connected with station level through communication interface.
And described transmitting module, data acquisition module, administration module, data processing and analysis module link together through the interface or the differential interface of bus type.
And described transmitting module adopts fiber optical transceiver.
And described data acquisition module is connected and composed by data acquisition DSP module and two-port RAM.
And described administration module is connected and composed by management DSP module and two-port RAM.
And described data processing and analysis module are by embedded ETX, communication interface and show that printing interface connects and composes.
And described communication interface is network interface or RS232 interface.
The advantage and the good effect of the utility model are:
The utility model is applied to the wall in the intelligent substation system architecture of IEC61850 standard code; The digital signal that sends through fiber optic network interface receiving course layer merge cells is on the one hand handled through data acquisition module, administration module and data analysis processing module then and is realized intelligent substation electric energy quality monitoring function; Through the technical grade Ethernet data of finishing dealing with are sent to station level on the other hand; Thereby realize seamless interconnected and communication function with process layer merge cells and station level; The reliability and the real-time of communication have fully been guaranteed; Establish solid foundation for the interactive and interoperability of intelligent substation automated system, saved debugging and maintenance time, also reduced operating cost.
Description of drawings
Fig. 1 is the connection synoptic diagram of the utility model;
Fig. 2 is the annexation of the utility model and process layer merge cells and station level.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is done further detailed description:
A kind of novel intelligent transformer station electric energy quality monitoring terminal; As shown in Figure 1; Comprise transmitting module, data acquisition module, administration module, data processing and analysis module and gps time base modules; Wherein, transmitting module adopts the fiber optical transceiver of AVAGO company or the reception of its module to be transferred to data acquisition module from the digital signal of Optical Fiber Transmission and through internal bus; Data acquisition module is connected and composed by data acquisition DSP module and two-port RAM, and this data acquisition DSP module adopts the dsp processor of Texas Instrument to carry out the collection of data and stores in the two-port RAM; Administration module is made up of management DSP and two-port RAM, the dual port RAM data of the DSP reception data acquisition module of administration module and be transferred to data processing and analysis module in; Data processing and analysis module are by embedded ETX, communication interface and show that printing interface connects and composes, and can analyze and handle the data that administration module transmits, and arrive station level according to demand through RS232 or Network Transmission then; The gps time base modules is connected to and realizes gps clock and sequential control function on the internal bus; Adopt the interface or the differential interface of bus type between above-mentioned transmitting module, data acquisition module, administration module, data processing and analysis module and the gps time base modules, fully guaranteed high data throughput capabilities, and had high precision and high reliability.This monitoring terminal is after receiving the GPS synchronizing clock signals; Form the synchronous acquisition control signal; Under the control of synchronous acquisition signal; Data acquisition module carries out synchronous acquisition and pre-service, and image data is delivered to administration module respectively through bus and carried out related algorithm and calculate, by data processing and analysis module carry out data storage, the data analysis processing module is carried out processing such as data storage, analysis, printing and data remote.
As shown in Figure 2, this novel intelligent transformer station electric energy quality monitoring terminal is connected with process layer merge cells through optical fiber interface, is connected with station level through EPA, realizes following function:
(1) power quality parameter monitoring
The comprehensive monitoring power quality parameter comprises that voltage deviation, frequency departure, harmonic wave (50 times), a harmonic wave, electric current and voltage degree of unbalancedness, voltage fluctuation and flicker, first-harmonic and each harmonic are meritorious, reactive power, power factor etc.; The amplitude of harmonic voltage, electric current and phase place thereof; The containing ratio of each harmonic voltage and voltage resultant distortion rate thereof; Each harmonic is meritorious, reactive power, power factor etc.
(2) statistical function
Maximal value, minimum value and the time of origin of statistics select time section, mean value, 95% probable value etc. generate various statistical report forms automatically.
(3) curve drafting function
Data are with the form output of waveform, frequency spectrum, trend map and form.
Automatically generate various curves and form according to test result.
(4) recording storage function
Have mass storage (>=160G), all stored records were preserved 12 months at least, afterwards by the principle cycle and regeneration of mature of first in first out.
(5) record wave energy
Possesses complete record wave energy: the quality of power supply exceed standard record ripple (voltage deviation, frequency, imbalance, harmonic wave), the disturbance of electrical network transient state record ripple (short time voltage interruption, electric voltage dropping, voltage swells), switching value displacement record ripple, manual test record ripple.The correct time that record exceeds standard and takes place, duration and amplitude can be done further fault rootstock analysis according to record ripple file.Each Starting mode can be set to start or shielding according to on-site actual situations by the user.
(6) GPS to the time function
Receive the external GPS contact to the time signal, guaranteed the synchronized sampling of all monitoring terminals, all record data have absolute moment markers, make power quality data and recorder data and other data tight association.
(7) teletransmission function
Adopt LAN technology and telecommunications network technology, networking mode is flexible, has EPA interface, MODEM interface, RS232, RS485 serial port; The ICP/IP protocol of support standard; Through fiber optic network or MODEM dialing, realize data remote, constitute the electric energy quality monitoring net; The realization Long-distance Control is called, and the expansion of site is unrestricted.
(8) channel arrangement
Channel arrangement is flexible: can monitor 3*10 phase voltage or electric current at most, the input of 16 way switch amounts.All passage synchronized samplings, the high precision of assurance result of calculation.
(9) parameter setting
System parameter setting, modification conveniently can locality or distant place modifications.
The principle of work of the utility model is: the network using Abstract Common Service Interface between substation level and wall is mapped to makes message specification (MMS), transmission control protocol/Ethernet or optical networking.Network using single-point between wall and process layer is to the one-way transmission Ethernet of multiple spot.Intelligent electronic device in the transformer station (1ED, electric energy quality monitoring and relay protection) all adopts unified agreement, carries out message exchange through network.This monitoring terminal is through fiber optical transceiver, and the light signal that process layer merge cells brought carries out opto-electronic conversion, simultaneously through the network receiving chip; Resolve Internet protocol (TCP/IP); According to the IEC61850 protocol specification, the packet that decoding is received obtains voltage, real-time current sampled data; Then sampled data is carried out the electric energy analysis; Quality of power supply technical indicators such as calculating voltage deviation, frequency departure, harmonic wave, voltage fluctuation and flicker, three-phase imbalance, and analysis result is uploaded station level through network, realize real-time monitoring and control to the quality of power supply.
It is emphasized that; The described embodiment of the utility model is illustrative; Rather than it is determinate; Therefore the utility model is not limited to the embodiment described in the embodiment, every by those skilled in the art according to other embodiments that the technical scheme of the utility model draws, belong to the scope of the utility model protection equally.
Claims (7)
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| CN2012200012698U CN202404181U (en) | 2012-01-04 | 2012-01-04 | Novel intelligent transformer station electric energy quality monitoring terminal |
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| CN2012200012698U CN202404181U (en) | 2012-01-04 | 2012-01-04 | Novel intelligent transformer station electric energy quality monitoring terminal |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539971A (en) * | 2012-01-04 | 2012-07-04 | 天津市电力公司 | Electric energy quality monitoring terminal of intelligent substation |
| CN102901899A (en) * | 2012-10-23 | 2013-01-30 | 江苏省电力公司扬州供电公司 | Electric energy quality monitoring and analysis system in power distribution automatic system |
| CN102928737A (en) * | 2012-11-01 | 2013-02-13 | 航天科工深圳（集团）有限公司 | Fault detection system and method |
| CN103983868A (en) * | 2014-05-07 | 2014-08-13 | 国家电网公司 | Commissioning test data processing system of transmission and transformation project |
| CN103995193A (en) * | 2014-04-30 | 2014-08-20 | 贵州电力试验研究院 | Digital substation whole-substation power quality on-line monitoring device |
| CN108802490A (en) * | 2018-06-25 | 2018-11-13 | 中国石油大学(华东) | A kind of plesiochronous startup of harmonic wave on-line monitoring terminal under the conditions of no clock synchronization and synchronization data obtaining method |
-
2012
- 2012-01-04 CN CN2012200012698U patent/CN202404181U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539971A (en) * | 2012-01-04 | 2012-07-04 | 天津市电力公司 | Electric energy quality monitoring terminal of intelligent substation |
| CN102901899A (en) * | 2012-10-23 | 2013-01-30 | 江苏省电力公司扬州供电公司 | Electric energy quality monitoring and analysis system in power distribution automatic system |
| CN102928737A (en) * | 2012-11-01 | 2013-02-13 | 航天科工深圳（集团）有限公司 | Fault detection system and method |
| CN103995193A (en) * | 2014-04-30 | 2014-08-20 | 贵州电力试验研究院 | Digital substation whole-substation power quality on-line monitoring device |
| CN103995193B (en) * | 2014-04-30 | 2016-09-07 | 贵州电力试验研究院 | Digital transformer substation is stood electric energy quality on-line monitoring device entirely |
| CN103983868A (en) * | 2014-05-07 | 2014-08-13 | 国家电网公司 | Commissioning test data processing system of transmission and transformation project |
| CN103983868B (en) * | 2014-05-07 | 2016-09-07 | 国家电网公司 | A kind of project of transmitting and converting electricity Start-up and Adjustment data handling system |
| CN108802490A (en) * | 2018-06-25 | 2018-11-13 | 中国石油大学(华东) | A kind of plesiochronous startup of harmonic wave on-line monitoring terminal under the conditions of no clock synchronization and synchronization data obtaining method |
| CN108802490B (en) * | 2018-06-25 | 2020-08-28 | 中国石油大学(华东) | Quasi-synchronous starting and synchronous data acquisition method for harmonic on-line monitoring terminal under time-alignment-free condition |
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Granted publication date: 20120829 |
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